64 LED button Pad diffrence v1 v2


i think i have one of the first boards

i build a big viewnome only leds no buttons

my setup is seeduino > unsped shield > 64 LED button Pad board

when i plug in the usb cable most of the leds light up

i think there is a problem in the wireing i used the 8 pin cables do i have to split them up ?

what are the diffrences between v1 board and v2 board ?

i appreciate every input to my problem